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Question: Answered & Verified by Expert
Which one of the following plant growth regulator is known as 'stress hormone'?
BiologyPlant - Growth and DevelopmentNEET
Options:
  • A Abscisic acid
  • B Ethylene
  • C GA3
  • D Indole acetic acid
Solution:
2857 Upvotes Verified Answer
The correct answer is: Abscisic acid
Abscisic acid prepares plants to cope with stress conditions like drought, etc. by inducing stomatal closure and other reactions. Hence it is named stress hormone.

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